As I said before, it's the temp of the inverter board, alternator, and
cylinder head that's critical. Measuring the temp of the air in the
enclosure or radiant IR heating of the enclosure walls is meaningless
for determining this.
It's like when your automatic trans starts slipping. The clutches are
red hot inside, but you have no sense of this from the drivers seat.
With the temp of the enclosure as you describe, the internals of the gen
are probably near meltdown. At the least the heat stress will damage the
electronics and cause early failure, and the hot intake air will fry the
engine. At worst, it will boil the fuel into a nice 14.7:1 ratio and
blow your boat out of the water.
JR

dene wrote:

Spent the part of the day on the transient dock, experimenting with
this prototype. Bad news is that after 20 mins. of running on a medium
load, two of the four inner cooler walls were unacceptably hot....hot
like a Texas sidewalk in July. The following link reveals some
pictures along with captions which further explain the problem.

http://tinyurl.com/ynjwkh

Good news is....

1. Neither the boat, nor the genny, blew up
2. The sound and vibration was dramatically reduced. When sitting in
the cabin, we could barely hear the gen.
3. The bosum mate likes the look of it on the swim platform.

So....I intend to ventilate further with larger holes on all four side
and also connect a DC fan to the gen., which will run the entire time
the gen runs. I hope to order it tomorrow.

Experimentation continues.....only this time it will be in a parking
lot with the eco-throttle off. Stay tuned.

If this doesn't work, then I may purchase the Rubbermaid Action Packer
box that another boater successfully used and modify it. He simply has
a large hole on each side....one for the cords and one for the exhaust.
He claims no problems. Is it possible/likely that this heavy duty
plastic box does a better job of difusing heat than a cooler would?

-Greg
Portland, Oregon



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